Here are the culprits of the wealth drop. Lets just say someone made them mad...
Ah well the thing about this run is that I only ever had a maximum of 5 pawns, making it so I'd never leave a colonist behind. So the only other creature wealth was animals. I did a mechanitor run so most of my combat was from mechanoids. I did have the most kitted out colonists ever though!
Looks like you're pretty well set up! A couple things you could improve though. I assume the columns in the killbox are for roof collapse? Make sure you have an IED where the enemies would stand for cover behind the pillar. Also your turrets are a little too far forward and may end up receiving friendly fire from your own colonists. Other than that, you're doing well! Are you going for an ending?
Beat it on Losing Is Fun difficulty, took a good 21 in game years, and ~3.5 days IRL play time, 107 Raids, and 178 major threats.
Was it worth it? I don't know, but I won't be doing it again...
Also ignore the early wealth drop, we don't talk about the early wealth drop...
Seems to be comparing the waterfalls.